128038747284 has 72 divisors (see below), whose sum is σ = 389357608640. Its totient is φ = 34657103232.

The previous prime is 128038747283. The next prime is 128038747307. The reversal of 128038747284 is 482747830821.

128038747284 is a `hidden beast` number, since 1 + 280 + 3 + 87 + 4 + 7 + 284 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 128038747284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128038747283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13366009 + ... + 13375584.

Almost surely, 2^128038747284 is an apocalyptic number.

128038747284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128038747284 is an abundant number, since it is smaller than the sum of its proper divisors (261318861356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128038747284 is a wasteful number, since it uses less digits than its factorization.

128038747284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26741629 (or 26741624 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 128038747284 in words is "one hundred twenty-eight billion, thirty-eight million, seven hundred forty-seven thousand, two hundred eighty-four".